CN-224230245-U - New fan

CN224230245UCN 224230245 UCN224230245 UCN 224230245UCN-224230245-U

Abstract

The application relates to the technical field of household appliances, and discloses a fresh air fan, which can introduce outdoor air and indoor air into a heat exchange air duct under the condition of large temperature difference between the outdoor air and the indoor air so as to enable the indoor air and the outdoor air to exchange heat through a total heat exchange module; under the condition that the temperature difference between the outdoor air and the indoor air is small, the outdoor air can be directly introduced into the room through the bypass air duct. By the arrangement, the fresh air fan can be prevented from being in a high-load state continuously, and the service life of the fresh air fan is further ensured.

Inventors

XU WENTANG
SUN XUXIANG
YIN PENGFEI
ZHAO KAIMENG

Assignees

青岛海尔空调器有限总公司
海尔智家股份有限公司

Dates

Publication Date: 20260512
Application Date: 20250520

Claims (10)

1. A fresh air fan, comprising: The shell is provided with a heat exchange air duct, an air inlet air duct and an air supply air duct, and the air inlet air duct and the air supply air duct are respectively communicated with the heat exchange air duct; the total heat exchange module is arranged in the heat exchange air duct; The bypass box body is arranged on one side of the total heat exchange module and comprises a bypass box body, a bypass air channel is arranged on the bypass box body, and the fresh air channel and the air supply channel are respectively communicated with the bypass air channel; The heat exchange valve body is used for dredging or plugging the heat exchange air duct and, And the bypass valve body is used for dredging or blocking the bypass air duct.
2. The fresh air machine of claim 1, wherein the bypass box includes: a bypass box base arranged at one side of the total heat exchange module and a heat exchange device, The bypass box cover body is buckled on one side of the bypass box base, which is close to the total heat exchange module; And a hollow cavity is formed between the bypass box cover body and the bypass box base to form the bypass air duct.
3. The fresh air machine of claim 2, wherein the bypass duct includes a bypass air inlet and a bypass air outlet, the bypass air inlet and the bypass air outlet in communication with the air inlet duct and the air outlet duct, respectively; the bypass valve body includes: a bypass swing blade rotatably arranged at the bypass air inlet or the bypass air outlet, and, The bypass motor is in driving connection with the bypass swing blade; the bypass motor can drive the bypass swing blade to rotate so as to dredge or block the bypass air inlet or the bypass air outlet.
4. A fresh air machine according to claim 3, wherein, The bypass box body is provided with a mounting groove at a position corresponding to the bypass motor, and the bypass motor is mounted in the mounting groove.
5. The fresh air machine of claim 1, wherein the heat exchange valve body comprises: The frame body is arranged on the heat exchange air duct; a heat exchange swing blade rotatably arranged on the frame body and a heat exchange swing blade, The heat exchange motor is connected with the heat exchange pendulum She Chuandong; the heat exchange motor can drive the heat exchange swing blade to rotate so as to dredge or block the heat exchange air duct.
6. The fresh air machine according to claim 5, wherein the heat exchange valve body comprises a plurality of heat exchange swing blades, and a plurality of heat exchange swings She Pinghang are arranged on the frame at intervals; The heat exchange valve body further comprises: the transmission connecting rods are respectively and rotatably connected with the plurality of heat exchange swing blades; the heat exchange motor is in driving connection with the transmission connecting rod so as to drive the transmission connecting rod to reciprocate, and then drive the heat exchange swing blade to rotate.
7. The fresh air machine according to claim 5, wherein, The heat exchange air duct comprises a heat exchange air inlet and a heat exchange air outlet which are respectively communicated with the air inlet duct and the air outlet duct, The shell is also provided with a mounting slot at a position corresponding to the heat exchange air inlet or the heat exchange air outlet; The shape and the size of the installation slot are corresponding to those of the frame body, so that the frame body can be inserted into the installation slot.
8. The fresh air machine according to claim 7, wherein, One side of the mounting slot is also provided with an avoidance groove, and the heat exchange motor can be mounted in the avoidance groove.
9. The fresh air machine according to any one of claims 1 to 8, further comprising: a temperature sensor for acquiring an outdoor temperature and an indoor temperature, and, The control device is respectively and electrically connected with the temperature sensor, the heat exchange valve body and the bypass valve body; the control device can respectively control the heat exchange valve body and the bypass valve body to dredge or block the corresponding air duct according to the outdoor temperature and the indoor temperature.
10. The fresh air machine according to claim 9, wherein, And under the condition that the temperature difference between the outdoor air and the indoor air is smaller than or equal to the preset temperature difference, the control device controls the heat exchange valve body to block the heat exchange air duct and controls the bypass valve body to dredge the bypass air duct.

Description

New fan Technical Field The application relates to the technical field of household appliances, in particular to a fresh air machine. Background With the development of society, the demands of users for quality of life are also increasing. In summer or winter, users typically tighten doors and windows for a long period of time, which can cause indoor air to become cloudy and increase indoor carbon dioxide content. Therefore, the user may also set a fresh air blower to process the outdoor air and then deliver the processed outdoor air into the room to improve the quality of the indoor air. In order to further improve the use experience of a user, the traditional fresh air fan generally refrigerates or heats outdoor air, so that the temperature of the outdoor air flowing into the outdoor is the same as the indoor temperature, and further the influence of the fluctuation of the indoor temperature on the user experience is avoided. In the related art, a total heat exchange module is also disposed in the fresh air machine for energy consumption of the fresh air machine. The fresh air machine simultaneously guides the indoor air and the outdoor air to the total heat exchange module so that the indoor air and the outdoor air exchange heat with each other. In this way, after the outdoor air is at a temperature equivalent to that of the indoor air, the outdoor air can be introduced into the room. In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art: In the related art, a fresh air fan provided with a total heat exchange module, even if the temperature of outdoor air is equivalent to that of indoor air, the fresh air fan still enables the outdoor air and the indoor air to exchange heat through the total heat exchange module. This can result in the fresh air machine being continuously in a high load condition, affecting the service life of the fresh air machine. It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the application and thus may include information that does not form the prior art that is already known to those of ordinary skill in the art. Disclosure of utility model The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview, and is intended to neither identify key/critical elements nor delineate the scope of such embodiments, but is intended as a prelude to the more detailed description that follows. The embodiment of the disclosure provides a fresh air machine, which can lead outdoor air and indoor air into a heat exchange air duct firstly under the condition of larger temperature difference between the outdoor air and the indoor air so as to exchange heat between the outdoor air and the indoor air through a total heat exchange module, and can lead the outdoor air into a room directly through a bypass air duct under the condition of smaller temperature difference between the outdoor air and the indoor air. By the arrangement, the fresh air fan can be prevented from being in a high-load state continuously, and the service life of the fresh air fan is further ensured. The embodiment of the disclosure provides a fresh air fan which comprises a shell, a total heat exchange module, a bypass box body, a heat exchange valve body and a bypass valve body. The shell is provided with a heat exchange air channel, an air inlet air channel and an air supply air channel which are respectively communicated with the heat exchange air channel, the total heat exchange module is arranged on the heat exchange air channel, the bypass box body is arranged on one side of the total heat exchange module and comprises a bypass box body, the bypass box body is provided with a bypass air channel, the fresh air channel and the air supply air channel are respectively communicated with the bypass air channel, the heat exchange valve body is used for dredging or plugging the heat exchange air channel, and the bypass valve body is used for dredging or plugging the bypass air channel. In some embodiments, the bypass cassette includes a bypass cassette base and a bypass cassette cover. The bypass box base is arranged on one side of the total heat exchange module, the bypass box cover body is buckled on one side of the bypass box base close to the total heat exchange module, and a hollow cavity is formed between the bypass box cover body and the bypass box base to form a bypass air channel. In some embodiments, the bypass air duct comprises a bypass air inlet and a bypass air outlet, the bypass air inlet and the bypass air outlet are respectively communicated with the air inlet duct and the air outlet duct, and the bypass valve body comprises a bypass swing blade and a bypass motor. The bypass swing blade is rotatably arranged at the bypass air in